Abstract- 48J/mol.K and (∆ ) = 0.4, 0.06, -0.15, -0.27, -0.54, -7.30KJ/mol. These results obtained show that activated carbon from Periwinkle shell will be a good low-cost adsorbent for the removal of erythrosine from aqueous solution.

Abstract-Adsorption 308, 313, 318, 323 and 328K respectively. These results show that activated carbon from snail shell has the potential of a good low cost adsorbent for the removal of this hazardous dye from wastewater.

= -0.10, -0.27, -0.82, -1.05, -1.77, -2